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Vliv alkalických kovů v kalcinovaném Co-Mn-Al LDH na katalytický rozklad N2O.
Obalová, L. ; Jirátová, Květa ; Kovanda, F. ; Galejová, K. ; Pacultová, K.
The effect of various amounts of potassium in Co-Mn-Al spinel catalyst on N2O decompositon was examined. Different catalytic performance of samples with different amount of K in th epresence of H2O and NOx could be related to changes in acidity and basicity of catalyst surface.
N2O Decomposition over Promoted Mixed Oxide Catalysts.
Galejová, K. ; Obalová, L. ; Pacultová, K. ; Lacný, Z. ; Kovanda, F. ; Jirátová, Květa
Mixed oxide Co-Mn-Al catalysts were promotes by metals Pd, Pt, La, K and Ce. In simulated proces conditions (in the presence of O2, NO, NO2, H2O) catalytic activity, as well as thein regeneration was studied. The most active catalyst is that one with 3 wt. % K.
Catalytic Reduction of N2O Emissions.
Obalová, L. ; Kovanda, F. ; Jirátová, Květa ; Pacultová, K.
Effect of mixed oxides prepared by decomposition of hydrotalcite precursors was studied in decomposition of N2O. In simulated proces conditions (presence of O2, NO, NO2, H2O) their activity and long-term stability was examined. The most active catalyst was that with 3 wt. % K.
Catalytic Methods in Decrease of N2O Emissions: II. Catalysts Based on Hydrotalcites – Results of Investigation.
Pacultová, K. ; Obalová, L. ; Kovanda, F. ; Jirátová, Květa ; Lacný, Z. ; Valášková, M.
Activity of the two- and three component catalysts prepared by calcinations of Ni, Cu, Co, Mn, Mg, Al hydrotalcites in various molar ratios, partly modified with Pt, Pd, La, or K, was studied. Influence of O2, NOx, or H2O present in the reaction mixture on activity and stability of the most active catalyst was also investigated. Based on the laboratory results the size of a hypothetical industrial reactor was calculated.
Účinnost destrukce N2O v přítomnosti CO na směsných oxidických Co-Mn-Al katalyzátorech odvozených z Co-Mn-Al hydrotalcitů.
Pacultová, K. ; Obalová, L. ; Jirátová, Květa ; Kovanda, F.
Presence of CO showed a positive effect on the N2O destruction over mixed metal oxide catalyst derived from Co-Mn-Al hydrotalcite precursors, as it can remove the adsorbed oxygen on the catalyst surface. Vice versa presence of oxygen in the reaction mixture has negative effect.

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4 Pacultová, K.
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